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<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li>  </ul>
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  <div class="headertitle"><div class="title">Utf8.h</div></div>
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span><span class="comment">/*</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno">    2</span><span class="comment">    netLink: c++ 11 networking library</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno">    3</span><span class="comment">    Copyright (C) 2013-2023 Alexander Meißner</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno">    4</span><span class="comment"></span> </div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno">    5</span><span class="comment">    This program is free software: you can redistribute it and/or modify</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno">    6</span><span class="comment">    it under the terms of the GNU General Public License as published by</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span><span class="comment">    the Free Software Foundation, either version 3 of the License, or</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span><span class="comment">    (at your option) any later version.</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span><span class="comment"></span> </div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span><span class="comment">    This program is distributed in the hope that it will be useful,</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno">   11</span><span class="comment">    but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno">   12</span><span class="comment">    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span><span class="comment">    GNU General Public License for more details.</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno">   14</span><span class="comment"></span> </div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno">   15</span><span class="comment">    You should have received a copy of the GNU General Public License</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno">   16</span><span class="comment">    along with this program.  If not, see &lt;http://www.gnu.org/licenses/&gt;.</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno">   17</span><span class="comment">*/</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span> </div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno">   19</span><span class="preprocessor">#pragma once</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno">   20</span> </div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span><span class="preprocessor">#include &lt;cstring&gt;</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno">   22</span><span class="preprocessor">#include &lt;string&gt;</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno">   23</span> </div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span><span class="preprocessor">#ifdef _MSC_VER</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span><span class="preprocessor">#include &lt;intrin.h&gt;</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno">   26</span><span class="preprocessor">#define countLeadingOneBits(x) __lzcnt(~(x))</span></div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno">   27</span><span class="preprocessor">#else</span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno">   28</span><span class="preprocessor">#define countLeadingOneBits(x) __builtin_clz(~(x))</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span> </div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno">   31</span><span class="keyword">namespace </span>utf8 {</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span>    <span class="keyword">template</span>&lt;<span class="keyword">typename</span> iterator&gt;</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno">   34</span>    iterator&amp; decrement(iterator&amp; i) {</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno">   35</span>        <span class="keywordflow">while</span>((*(--i)&amp;0xC0) == 0x80);</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span>        <span class="keywordflow">return</span> i;</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span>    }</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span> </div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span>    <span class="keyword">template</span>&lt;<span class="keyword">typename</span> iterator&gt;</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span>    iterator&amp; increment(iterator&amp; i) {</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span>        <span class="keywordflow">while</span>((*(++i)&amp;0xC0) == 0x80);</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span>        <span class="keywordflow">return</span> i;</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span>    }</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span> </div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span>    <span class="keyword">template</span>&lt;<span class="keyword">typename</span> iterator&gt;</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span>    iterator decremented(iterator i) {</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span>        <span class="keywordflow">return</span> decrement(i);</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span>    }</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span> </div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span>    <span class="keyword">template</span>&lt;<span class="keyword">typename</span> iterator&gt;</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span>    iterator incremented(iterator i) {</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span>        <span class="keywordflow">return</span> increment(i);</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span>    }</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span> </div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span>    <span class="keyword">template</span>&lt;<span class="keyword">typename</span> iterator&gt;</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span>    iterator&amp; backward(iterator&amp; i, <span class="keywordtype">size_t</span> n) {</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span>        <span class="keywordflow">for</span>(<span class="keywordtype">size_t</span> c = 0; <span class="keyword">true</span>; --i) {</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span>            <span class="keywordflow">if</span>((*i&amp;0xC0) != 0x80)</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span>                ++c;</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span>            <span class="keywordflow">if</span>(c &gt; n)</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span>                <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span>        }</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span>        <span class="keywordflow">return</span> i;</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span>    }</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span> </div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span>    <span class="keyword">template</span>&lt;<span class="keyword">typename</span> iterator&gt;</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span>    iterator&amp; forward(iterator&amp; i, <span class="keywordtype">size_t</span> n) {</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span>        <span class="keywordflow">for</span>(<span class="keywordtype">size_t</span> c = 0; <span class="keyword">true</span>; ++i) {</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span>            <span class="keywordflow">if</span>((*i&amp;0xC0) != 0x80)</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span>                ++c;</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span>            <span class="keywordflow">if</span>(c &gt; n)</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span>                <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span>        }</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span>        <span class="keywordflow">return</span> i;</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span>    }</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span> </div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span>    <span class="keyword">template</span>&lt;<span class="keyword">typename</span> iterator&gt;</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span>    iterator&amp; backwardUntil(iterator&amp; i, <span class="keyword">const</span> iterator&amp; end, <span class="keywordtype">size_t</span> n) {</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span>        <span class="keywordflow">for</span>(<span class="keywordtype">size_t</span> c = 0; i &gt; end; --i) {</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span>            <span class="keywordflow">if</span>((*i&amp;0xC0) != 0x80)</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span>                ++c;</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span>            <span class="keywordflow">if</span>(c &gt; n)</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span>                <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span>        }</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span>        <span class="keywordflow">return</span> i;</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span>    }</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span> </div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span>    <span class="keyword">template</span>&lt;<span class="keyword">typename</span> iterator&gt;</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span>    iterator&amp; forwardUntil(iterator&amp; i, <span class="keyword">const</span> iterator&amp; end, <span class="keywordtype">size_t</span> n) {</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span>        <span class="keywordflow">for</span>(<span class="keywordtype">size_t</span> c = 0; i &lt; end; ++i) {</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span>            <span class="keywordflow">if</span>((*i&amp;0xC0) != 0x80)</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span>                ++c;</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span>            <span class="keywordflow">if</span>(c &gt; n)</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span>                <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span>        }</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span>        <span class="keywordflow">return</span> i;</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span>    }</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span> </div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span>    <span class="keyword">template</span>&lt;<span class="keyword">typename</span> iterator&gt;</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span>    <span class="keywordtype">size_t</span> difference(<span class="keyword">const</span> iterator&amp; end, <span class="keyword">const</span> iterator&amp; begin) {</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span>        <span class="keywordtype">size_t</span> len = 0;</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span>        <span class="keywordflow">for</span>(<span class="keyword">auto</span> i = begin; i &lt; end; ++i)</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span>            <span class="keywordflow">if</span>((*i&amp;0xC0) != 0x80)</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span>                ++len;</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span>        <span class="keywordflow">return</span> len;</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span>    }</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span> </div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span>    <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keywordtype">char</span> bom[4];</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span> </div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span>    <span class="keyword">template</span>&lt;<span class="keyword">typename</span> iterator&gt;</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span>    <span class="keywordtype">bool</span> checkBOM(iterator i) {</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span>        <span class="keywordflow">return</span> (i[0] == bom[0] &amp;&amp; i[1] == bom[1]  &amp;&amp; i[2] == bom[2]);</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span>    }</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span> </div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span>    <span class="keywordtype">void</span> setBOM(std::string&amp; str);</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span> </div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span>    <span class="keywordtype">size_t</span> length(<span class="keyword">const</span> <span class="keywordtype">char</span>* str);</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span> </div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span>    <span class="keywordtype">size_t</span> length(<span class="keyword">const</span> std::string&amp; str);</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span> </div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span>    <span class="keywordtype">void</span> insert(std::string&amp; dst, <span class="keywordtype">size_t</span> pos, <span class="keyword">const</span> <span class="keywordtype">char</span>* src);</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span> </div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span>    <span class="keywordtype">void</span> erase(std::string&amp; str, <span class="keywordtype">size_t</span> pos, <span class="keywordtype">size_t</span> len);</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span> </div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span>    <span class="keywordtype">void</span> replace(std::string&amp; dst, <span class="keywordtype">size_t</span> pos, <span class="keywordtype">size_t</span> len, <span class="keyword">const</span> <span class="keywordtype">char</span>* src);</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span> </div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno">  144</span>    <span class="keywordtype">size_t</span> byteSize(<span class="keywordtype">char32_t</span> c);</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span> </div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno">  147</span>    <span class="keyword">template</span>&lt;<span class="keyword">typename</span> iterator&gt;</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno">  148</span>    <span class="keywordtype">size_t</span> byteSize(iterator i) {</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno">  149</span>        <span class="keywordtype">size_t</span> s;</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno">  150</span>        <span class="keywordtype">char32_t</span> c;</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno">  151</span>        start:</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno">  152</span>        c = i[0];</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno">  153</span>        <span class="keywordflow">if</span>((c&amp;0x80) == 0)</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno">  154</span>            <span class="keywordflow">return</span> 1;</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno">  155</span>        s = countLeadingOneBits(c&lt;&lt;24);</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span>        <span class="keywordflow">if</span>(s == 1) {</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span>            decrement(i);</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span>            <span class="keywordflow">goto</span> start;</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span>        } <span class="keywordflow">else</span></div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span>            <span class="keywordflow">return</span> (s &gt; 4) ? -1 : s;</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno">  161</span>    }</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno">  162</span> </div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno">  164</span>    <span class="keyword">template</span>&lt;<span class="keyword">typename</span> iterator&gt;</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno">  165</span>    <span class="keywordtype">char32_t</span> toUtf32(iterator i) {</div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span>        <span class="keywordtype">char32_t</span> c;</div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span>        start:</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span>        c = i[0];</div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno">  169</span>        <span class="keywordflow">if</span>((c&amp;0x80) == 0)</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno">  170</span>            <span class="keywordflow">return</span> c;</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno">  171</span>        <span class="keywordflow">switch</span>(countLeadingOneBits(c &lt;&lt; 24)) {</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno">  172</span>            <span class="keywordflow">case</span> 1:</div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno">  173</span>                decrement(i);</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno">  174</span>                <span class="keywordflow">goto</span> start;</div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno">  175</span>            <span class="keywordflow">case</span> 2:</div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno">  176</span>                <span class="keywordflow">return</span> (c&amp;0x1F)&lt;&lt;6 | (i[1]&amp;0x3F);</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno">  177</span>            <span class="keywordflow">case</span> 3:</div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno">  178</span>                <span class="keywordflow">return</span> (c&amp;0x0F)&lt;&lt;12 | (i[1]&amp;0x3F)&lt;&lt;6 | (i[2]&amp;0x3F);</div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno">  179</span>            <span class="keywordflow">case</span> 4:</div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno">  180</span>                <span class="keywordflow">return</span> (c&amp;0x0F)&lt;&lt;18 | (i[1]&amp;0x3F)&lt;&lt;12 | (i[2]&amp;0x3F)&lt;&lt;6 | (i[3]&amp;0x3F);</div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno">  181</span>            <span class="keywordflow">default</span>:</div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno">  182</span>                <span class="keywordflow">return</span> -1;</div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno">  183</span>        }</div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno">  184</span>    }</div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span> </div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno">  187</span>    <span class="keywordtype">void</span> append(std::string&amp; str, <span class="keywordtype">char32_t</span> c);</div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno">  188</span> </div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno">  190</span>    std::u32string convertToUtf32(<span class="keyword">const</span> std::string&amp; str);</div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno">  191</span> </div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno">  193</span>    std::string convertFromUtf32(<span class="keyword">const</span> std::u32string&amp; str);</div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno">  194</span>}</div>
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